<!DOCTYPE html>
<title>Tests parsing of the anchor-size() function</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#anchor-size">
<link rel="author" href="mailto:xiaochengh@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>

<script>
const anchorNames = [
  '--foo',
  '',
];

const sizeProperties = [
  'width',
  'min-width',
  'max-width',
  'height',
  'min-height',
  'max-height',
  'block-size',
  'min-block-size',
  'max-block-size',
  'inline-size',
  'min-inline-size',
  'max-inline-size',
];

const anchorSizes = [
  'width',
  'height',
  'block',
  'inline',
  'self-block',
  'self-inline',
];

const fallbacks = [
  null,
  '1px',
  '50%',
  'calc(50% + 1px)',
  'anchor-size(block)',
  'anchor-size(--bar block)',
  'anchor-size(--bar block, anchor-size(--baz inline))',
];

// Tests basic combinations
for (let name of anchorNames) {
  for (let property of sizeProperties) {
    for (let size of anchorSizes) {
      for (let fallback of fallbacks) {
        let value = `anchor-size(${name ? name + ' ' : ''}${size}${fallback ? ', ' + fallback : ''})`;
        test_valid_value(property, value);
      }
    }
  }
}

// Tests that anchor-size() can be used in a calc tree
test_valid_value('width', 'calc((anchor-size(--foo width) + anchor-size(--bar height)) / 2)');
test_valid_value('width', 'anchor-size(--foo width, calc(anchor-size(--bar height) * 0.5))');
test_valid_value('width', 'min(100px, 10%, anchor-size(--foo width), anchor-size(--bar height))');
</script>
